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发明名称
摘要
申请公布号
BG23462(A1)
申请公布日期
1977.09.15
申请号
BG19770035595
申请日期
1977.03.07
申请人
发明人
分类号
B23D23/04;(IPC1-7):B23D23/04
主分类号
B23D23/04
代理机构
代理人
主权项
地址
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